Drought risk in Maryland

Drought Characteristics in Maryland

Maryland has a generally humid climate, but it is not immune to drought. Drought develops when precipitation falls below normal for an extended period, often combined with above-average temperatures that increase evaporation. The Maryland Department of Emergency Management (MDEM) tracks drought as a natural hazard and works with state and local partners to monitor conditions and coordinate response. The U.S. Drought Monitor, a weekly map produced by federal agencies, classifies drought from D0 (abnormally dry) to D4 (exceptional drought). Maryland most often sees D0 to D2 conditions, though more severe drought has occurred historically.

Drought in Maryland is often regional rather than statewide. The Eastern Shore, with its extensive agriculture, is sensitive to rainfall deficits because crops, pastures, and farm ponds depend on regular precipitation. Central Maryland, including the Baltimore and Washington suburbs, can experience drought that stresses reservoirs and local water supplies. Southern Maryland and the Piedmont can see rapid soil drying during summer heat. Western Maryland's forests and rural communities face increased wildfire risk when dry conditions persist, even though mountain temperatures are cooler. Urban and suburban areas may face water-use restrictions when reservoir levels drop, while rural residents relying on private wells may see reduced water levels or dry wells.

Drought is most common from late spring through fall, but it can begin in winter if snowpack and rainfall are low. Flash droughts—periods of rapid intensification—can occur during hot, dry summers. Because Maryland's drought impacts vary by region and season, homeowners should check the U.S. Drought Monitor and Drought.gov for current local conditions.

How Drought Affects Homes in Maryland

Drought affects homes both directly and indirectly. One of the most common structural concerns is soil movement. Many Maryland soils contain clay, which shrinks when it dries. As the soil pulls away from a foundation, driveways, walkways, and basement walls can crack or settle unevenly. This damage is often gradual and may only become visible after repeated dry periods.

For rural homeowners, water supply is a major concern. Private wells that draw from shallow aquifers may run low or dry during prolonged drought. Even deep wells can be affected if the water table drops significantly. Homeowners may need to haul water, reduce usage, or drill deeper—an expensive undertaking.

Landscaping and lawns can suffer, and dry vegetation around a home increases wildfire risk. If a wildfire occurs during drought, it can damage or destroy homes, outbuildings, and fences. Water restrictions may also limit outdoor watering, car washing, and pool filling, affecting daily routines.

From an insurance perspective, standard homeowners policies generally do not cover drought-related damage such as foundation cracking caused by soil shrinkage. That type of damage is often considered earth movement or lack of maintenance, which is excluded. However, if a drought-related wildfire damages your home, fire damage is typically covered under a standard policy. Review your policy carefully and speak with your insurance agent about what is and is not covered. Flood insurance does not apply to drought, and separate wildfire coverage may be needed in high-risk areas.

How to Prepare Your Home for Drought

• Landscape with drought-tolerant plants. Choose native species adapted to Maryland's climate, group plants by water needs, and use mulch to retain soil moisture.
• Improve irrigation efficiency. Install drip irrigation or soaker hoses, water in the early morning or evening, and avoid watering on windy days. EPA WaterSense provides guidance on efficient irrigation.
• Fix leaks promptly. Check indoor and outdoor faucets, toilets, and pipes. A leaking toilet or irrigation line can waste large amounts of water.
• Install WaterSense-labeled fixtures. Toilets, showerheads, and faucets with the WaterSense label use less water without sacrificing performance.
• Harvest rainwater. Rain barrels can capture roof runoff for gardens. Check local regulations before installing.
• Protect your foundation. Maintain consistent soil moisture around the foundation with mulch or low-water landscaping. Avoid over-watering during wet periods, and consult a structural engineer if you notice new cracks.
• Maintain your well. If you rely on a private well, test it regularly, monitor water levels, and consider a low-yield protection system or backup water storage.
• Create defensible space. Clear dead vegetation, leaves, and debris within at least 30 feet of your home to reduce wildfire risk during drought. Ready.gov and FEMA offer detailed guidance.
• Follow local water restrictions. MDEM, local utilities, and county governments issue drought watches and warnings. Obeying restrictions helps protect community water supplies.
• Store emergency water. Keep a supply of drinking water for your household, as recommended by Ready.gov, in case of well failure or service interruptions.
• Monitor drought conditions. Check the U.S. Drought Monitor and Drought.gov regularly to understand current and forecast conditions in your area.
• Review insurance coverage. Understand exclusions for drought-related damage and consider separate wildfire coverage if you live in a wooded area.

Frequently Asked Questions

Does Maryland experience drought?

Yes. Although Maryland receives moderate precipitation in most years, droughts occur when rainfall is below normal for weeks or months. The U.S. Drought Monitor regularly shows areas of Maryland in D0 to D2 conditions, and more severe droughts have occurred historically. The Maryland Department of Emergency Management monitors drought and coordinates with state and local agencies.

How does drought damage a home's foundation?

During drought, clay-rich soils shrink. This can cause the ground to pull away from foundations, driveways, and sidewalks, leading to cracks and uneven settling. Damage is often gradual and may not be covered by homeowners insurance. Maintaining consistent soil moisture with mulch and proper drainage can help reduce the risk.

Can I water my lawn during a drought in Maryland?

It depends on local water restrictions. During drought warnings, Maryland utilities and local governments may limit outdoor watering, car washing, and pool filling. Always check with your water supplier and follow guidance from MDEM. Even without restrictions, using drought-tolerant landscaping and efficient irrigation reduces demand on water supplies.

Official Resources

• Maryland Department of Emergency Management
• U.S. Drought Monitor
• Drought.gov
• EPA WaterSense